Bay area news. Thank you. So whos responsible . More details now about the company that operates the crane and other vendors on this project. Nbc bay areas Investigative Unit is digging into the history of these companies and we found revealing information about their past. Reporter Stephen Stock joins us from our newsroom. A lot of talk about the contractors and the safety records. What have you found out . Raj, the crane as you heard from jodi is operated through a joint operations is agreement between two of the Largest Construction Companies in the country, a group called american Bridge Company based out of pennsylvania and an even larger corporation called Floor Enterprises based outside dallas, texas. According to data from the department of labor, oh shas inspectors investigated four complaints against fleur and american blij two safety complaints lodged against them as well as one accident, an accident that involved the death of a worker who apparently fell off a bridge during